Harrow.



G. HUMBERGER.

HARROW. APPLIOATIOH TILED JUNE 15, 1911.

Patented Nev. 21, 1911.

, UNITED STATES PATENT OFFICE. f

GILL HUMBERGER, 0F LEMOORE, CALIFORNIA.

HARROW.

Patented Nov. 21, 1911. Serial No. 633,386

1,009,667., Specification of Letters Patent.

Application filed .Tune 15, 1911.

To all whom it may concern: 3

Be it known that I. GILL I-IUMBERGER, a citizen of the United States of Amenida, residing at Lemoore, in the county of Kings and State of California, have invented new and useful Improvements in Harrows, of which the following is a specification.

In the variety of farm harrows which are made up of numerous small sections linked together, so that they follow the uneven'surface of the ground like a chain, my invention relatesto the construction of the small sections.

The purpose of my invention is to furnish a harrow which can be packed in the smallest possible space for shipment, which is, easily put together and taken apart, enlarged ormade smaller, which is light and strong and most simple to repair.

In the accompanying drawings, Figure 1. is a plan view of my harrow, which does not differ materially from the plan View of some other harrows. Fig. 2. is a perspective view of one of the sides of the small triangular sections with two barrow teeth in position, and shows the chief feature of my invention. Fig. 3. shows the manner of connecting two sldes' together with the links which connect two sections together. Fig. 4. is a perspective View of the corner of a section, showing the method of clamping the harrow teeth and of joining the sides of the triangular sections.

.ln Fig. 1., 1. is intended to represent one of the customary draft beams, attached to the front sections of the harrow by clevises. 2. represents the links which join the sec tions together. These links may be split links, or owing to the peculiarity of my invention', solid links may be used. The outside sections are joined on their outer edge with chains 3. of appropriate length. Only seven sections are shown in the accompanying drawing,.but any number may be used, joined together in the manner shown.

Number 4-. is one of the sides of the tri-' angular sections and is the chief element of my invention. It is made of cast or malleable iron and in its main length is construct ed in a -shaped pattern for the purpose of combining strength and lightness. At each end it is formed into a hook 5. and 5. One of these hooks is flat on its lower surface and the other is flat on its upper surface, making-a half round at each end so that if the side is reversed or changed to any other side of the triangle, the hooks of adjoining sides will fit upon each other,

forming a closed circle of-round iron, (6.

Figs. eland l) at each angle of the section. 6

At each angle of the sections a machine bolt 7. passes through each of the adjoining sides 4., drawing and binding them together, by tightening the nut 8. and lock nut 8.

On the inner side of each end. of the sides 4., and adjoining the hole through which the machine bolt 7. passes is an angular notch of proper size to receive one of the angles of an ordinary harrow tooth. In the accompanying drawing a tooth is shown which is notched at the point where the bolt passes through the sides of the frame andthe bolt passes through in the notch, thereby preventing the accidental raising orlowering of the harrow tooth, but applicant 7 5 does not consider that a notch in the harrow tooth is essential to the practical use of his invention because the tension of the bolt 7., drawing the adjoining sides together will clamp the harrow tooth between 30 the sides so firmly that the tooth cannot workloose. The sides 4. are identical on all sides of every section. Each end of every side is exactly like the opposite end of the side except that the hook is flattened 5 to a half round on the side opposite to that at the other end thereof.

The harrow complete consists of the sides 4., the teeth, the links, the bolts, nuts,

clevises and draft beam.' All excepting the beam can be closely packed for shipment in a box 15 inches long. The only parts ever apt to need replacing are a tooth or aside 4. If one of the sides be broken a new one kept for the purpose of repair can quickly be bolted into the position of the broken piece. Since they are so easily re-- paired the sections may be made lighter, thereby making the harrow more easily handled.

What I claimas new and desire tosecure by Letters Patent, is r 1. A harrow composed of triangular sections, each section having three separate sides, each side terminating in a half-round iron curved into a hook, the hook at one end being flat on its upper surface and the hook at the other end being-flaton its lower surface, having a barrow-tooth clamped between the adjoining sides near each angle are inclosed, having the and the adjoining sides themselves held together by a bolt passing through them at thean le of the section, substantially as shown. a.

2. A harrow composed of triangular sections, joined together by links, each section having three separate identical sides, each side terminating in a half-round iron curved into a hook, the hook at one end being flat 0n.its upper surface and the hook at the other end'being flat on its under surface, the hooks of adjoining sides resting upon each other on their flat surfaces forming a closed circle ateach angle, in which the said links adjoining sides drawn together by a bolt or similar device, .having a harrow tooth clamped between the adjoining as shown.

3. A harrow composed of triangular sections, each section having separate identical sides terminating in hooks which fit upon the hooks of the adjoining sides forming a closed circle at each. angle, having a harroW tooth clamped between the adjoining sides, substantially as shown.

sides at each angle, substantially In Witness whereof, I have hereunto sub scribed my name in the presence of two witnesses.

GILL HUMBERGER.

Gonies of this patent may be obtained for five cents each, by addressing the "Commissioner 0! Patents, Washington, D. G. 

